The LT8606HDC#TRMPBF is a compact, high efficiency, high speedsynchronous monolithic step-down switching regulatorthat consumes only 1.7μA of non-switching quiescentcurrent. The LT8606HDC#TRMPBF can deliver 350mA of continuouscurrent. Low ripple Burst Mode operation enables highefficiency down to very low output currents while keepingthe output ripple below 10mVP-P. Internal compensationwith peak current mode topology allows the use of smallinductors and results in fast transient response and goodloop stability. The EN/UV pin has an accurate 1V thresholdand can be used to program VIN undervoltage lockout orto shut down the LT8606. The PG pin signals when VOUTis within ±8.5% of the programmed output voltage as wellas fault conditions.
The MSOP package includes a SYNC pin to synchronizeto an external clock, or to select Burst Mode operationor pulse-skipping with or without spread-spectrum; theTR/SS pin programs soft-start or tracking. The DFN packageomits these pins and can be purchased in pulse-skipping or Burst Mode operation variety.
Feature
- Wide Input Voltage Range: 3.0V to 42V
- Ultralow Quiescent Current Burst Mode® Operation:
- <3μA IQ Regulating 12VIN to 3.3VOUT
- Output Ripple <10mVP-P
- High Efficiency 2MHz Synchronous Operation:
- >92% Efficiency at 0.35A, 12VIN to 5VOUT
- 350mA Maximum Continuous Output
- Fast Minimum Switch-On Time: 35ns
- Adjustable and Synchronizable: 200kHz to 2.2MHz
- Spread Spectrum Frequency Modulation for Low EMI
- Allows Use of Small Inductors
- Low Dropout
- Peak Current Mode Operation
- Accurate 1V Enable Pin Threshold
- Internal Compensation
- Output Soft-Start and Tracking
- Small Thermally Enhanced 10-Lead MSOP Package or 8-Pin 2mm × 2mm DFN Package
Applications
- General Purpose Step-Down Converter
- Low EMI Step Down
